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91 lines
2.8 KiB
Go
91 lines
2.8 KiB
Go
package fs
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import (
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"fmt"
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"os"
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"runtime"
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)
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// MkdirAll creates a directory named path, along with any necessary parents,
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// and returns nil, or else returns an error. The permission bits perm are used
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// for all directories that MkdirAll creates. If path is already a directory,
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// MkdirAll does nothing and returns nil.
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func MkdirAll(path string, perm os.FileMode) error {
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return os.MkdirAll(fixpath(path), perm)
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}
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// Remove removes the named file or directory.
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// If there is an error, it will be of type *PathError.
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func Remove(name string) error {
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return os.Remove(fixpath(name))
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}
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// RemoveAll removes path and any children it contains.
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// It removes everything it can but returns the first error
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// it encounters. If the path does not exist, RemoveAll
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// returns nil (no error).
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func RemoveAll(path string) error {
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return os.RemoveAll(fixpath(path))
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}
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// Link creates newname as a hard link to oldname.
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// If there is an error, it will be of type *LinkError.
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func Link(oldname, newname string) error {
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return os.Link(fixpath(oldname), fixpath(newname))
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}
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// Lstat returns the FileInfo structure describing the named file.
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// If the file is a symbolic link, the returned FileInfo
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// describes the symbolic link. Lstat makes no attempt to follow the link.
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// If there is an error, it will be of type *PathError.
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func Lstat(name string) (os.FileInfo, error) {
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return os.Lstat(fixpath(name))
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}
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// OpenFile is the generalized open call; most users will use Open
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// or Create instead. It opens the named file with specified flag
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// (O_RDONLY etc.) and perm, (0666 etc.) if applicable. If successful,
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// methods on the returned File can be used for I/O.
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// If there is an error, it will be of type *PathError.
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func OpenFile(name string, flag int, perm os.FileMode) (*os.File, error) {
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if runtime.GOOS == "windows" {
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flag &^= O_NOFOLLOW
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}
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return os.OpenFile(fixpath(name), flag, perm)
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}
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// IsAccessDenied checks if the error is due to permission error.
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func IsAccessDenied(err error) bool {
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return os.IsPermission(err)
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}
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// ResetPermissions resets the permissions of the file at the specified path
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func ResetPermissions(path string) error {
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// Set the default file permissions
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if err := os.Chmod(fixpath(path), 0600); err != nil {
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return err
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}
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return nil
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}
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// Readdirnames returns a list of file in a directory. Flags are passed to fs.OpenFile.
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// O_RDONLY and O_DIRECTORY are implied.
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func Readdirnames(filesystem FS, dir string, flags int) ([]string, error) {
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f, err := filesystem.OpenFile(dir, O_RDONLY|O_DIRECTORY|flags, false)
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if err != nil {
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return nil, fmt.Errorf("openfile for readdirnames failed: %w", err)
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}
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entries, err := f.Readdirnames(-1)
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if err != nil {
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_ = f.Close()
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return nil, fmt.Errorf("readdirnames %v failed: %w", dir, err)
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}
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err = f.Close()
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if err != nil {
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return nil, err
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}
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return entries, nil
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}
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